Saxo brake issue

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Rockettvr

Original Poster:

1,804 posts

144 months

Sunday 13th November 2016
quotequote all
Hi all
I'm struggling to find the answer to a brake issue on my sons saxo 1.1
We've had the car a few months and Tbh the brakes have never been great - needing a lot of pressure on the pedal to get any braking response. A couple of weeks back the brakes went altogether - master cylinder failure. A new one ordered and fitted, bled the brakes but found a failed slave on one of the rear drums(probably why the brakes have never been good) Fitted new slave , bled brakes again but the rear drums are not working correctly - the fronts are great locking up when the pedal is pushed but the rears barely have any grab to them - even when the pedal is pushed fully down I can turn the wheels by hand although with some effort.
I've bled the system several times using an easy bleed non return tube , the brake shoes(renewed both sides when slave replaced) are adjusted as far as possible without actually rubbing and the hand brake works really well needing only 3 clicks to lock the wheels solid.
I've had the drums off and the slave cylinders expand when the brake pedal is depressed
I thought it may be a faulty master cylinder (although new) so fitted another but the same symptoms persist.
In short the brakes are working well except that the master cylinder is exerting some but not enough pressure to the rear wheel cylinders.
Am I missing something ???
Any thoughts gratefully received
Thanks Ron